340 tunnel ram

Running a tunnel ram on the street for anything other than looks is a waste of time.

With that said.... Welcome! Nice to have you here!

Back to your post..... If you want the look, we do have people here running them. Give them time to reply and they should be able to point you in the right direction.

If you want to run one for power.... You will be better off with a conventional single 4 bbl set up.

ever ran one?


With respect to everyone's idea's..... If a tunnel ram were better, why doesn't everyone have one?

cause people are scared of them... and really dont understand them.


1. A single carb set up on duel or single plane manifold is simply better on a street car.

I've tested both back to back and thats wrong.


I always thought that a TR was for hi rpm operation and that doesn't happen on the street. Even most race cars don't have enough motor to sustain one (apparently) or they would have them. That's why Pro Stockers have them as did the old Modified Production cars and Gassers. The 70's Pro Stock guys used to reduce the size of the plenum, cuz it was too big even for them. Fuel atomization at low speed is poor because of the large internal volume.
Also, I grew up believing you should be able to back up the equipment you're running. I yam an oll drag racer...
Depends onthe TR - I run an eddy STREET Ram - it has a small plenum, and small runners, yes you can get into some large plenum TR's that will need to spin at 5 grand to even start making power... but they are all not the same.


I think you nailed it: It LOOKS COOL! Personal preference. If I had a TR, I would expect that SOB to run like a SOB! If you believe Billy Crystal--- "It's better to look mavaless than to feel (run) mavaless", then, go for it! (Cuz with that big manifold and all those barrels opening, it ain't gonna run like a four barrel. -low end torque-street usable.)

my holley 390's are vac sec - thats 780 cfm total, when I open it up the primaries open giving the same CFM a 780 holley single 4 would open up to....
the runners are a nice path to the heads, no twisting and turning like a conventional intake - look at a dual plane, it has to make a sharp turn as it enters the intake, another few turns to get to the head, fuel suspended in air does not like to turn, hence the efficiency of the TR